Comparing manual and computer assisted benthic cover estimations from underwater imagery for offshore wind-farms assessment Aleksej Šaškov 1 *, Thomas.

Slides:



Advertisements
Similar presentations
Technology in Science. Another name for technology is A: electronics B: controlled experiment C: robots D: applied science.
Advertisements

INDUSTRIAL ECONOMICS, INCORPORATED Oregon Coastal Atlas Coastal web atlases are among the best sources of GIS data for marine spatial planning Primary.
Overview of the Environmental Assessment for Lease Issuance and Site Assessment Activities off Rhode Island and Massachusetts July 16-17, 2012July 16-17,
Regional Environmental Assessment of Potential Impacts on Benthic Ecology from Cumulative Marine Aggregate Dredging, South Coast, UK Joni Backstrom, Dafydd.
East coast marine mammal acoustic study: using multiple modalities to assess habitat usage by harbour porpoises and bottlenose dolphins K.J. Palmer (1)*,
Feasibility Study of Harnessing Onshore Wave Energy at Waipapa
Aquaculture in Scotland the potential effects of the Water framework Directive the potential effects of the Water framework Directive Peter Holmes Marine.
Overview of survey, data collection and data analysis challenges Jared Wilson Marine Ornithologist.
NNMREC November 5, 2010 Northwest National Marine Renewable Energy Center Standards and Protocols for Environmental Assessment Renewable Ocean Energy and.
The Wider Offshore Industry - Introduction. Why Renewables? Mb/doe Gas Nuclear Oil Renewables Coal Incremental.
DEVELOPMENT PLANNING FOR COASTAL HAZARDS JUNE 30, 2006 BY ENGINEERING SECTION COASTAL ZONE MANAGEMENT UNIT COASTAL ENGINEERING FOR NATURAL HAZARDS.
BWEA OFFSHORE CONFERENCE 17 – 18 APRIL 2002 Offshore Consents Planning for the Future Nigel Peace Director, Energy Regulation Department of Trade & Industry.
Tidal power This is the power achieved by capturing the energy contained in moving water mass due to tides. This is the power achieved by capturing the.
Beyond stereotypes – ecological and landscape solutions for offshore wind farms Dr Maggie Hill Countryside Council for Wales.
ABOUT THE MEGAPROJECT: Working Group Classification: ENERGY Megaproject Title:Greater Gabbard Wind Farm Size of Megaproject (in EUR):1.8bn total costs.
ICIT Mapping maerl habitats using autonomous sensors Malcolm Thomson International Centre for Island Technology (ICIT) Heriot Watt University Old Academy.
1 Malcolm Thomson International Centre for Island Technology Heriot Watt University(Orkney Campus) Old Academy Stromness Orkney Scotland, UK SUMARE Workshop:
HWU I3S IST TMS MUMM Nice, December 2001 Underwater Robotics for Ocean Modelling and Monitoring Added value brought by AUV’s in the surveillance.
Sources of Energy Renewable and Non- renewable. What is Energy? Energy is the ability to do work.
Ocean Wave Energy Lilian Busse.
Radar Impact Assessment UK Offshore Wind 2003, March 2003 Dr John G Gallagher.
SW England testbed opportunities for marine renewable energy & offshore engineering Prof Martin J Attrill Director, Plymouth University Marine Institute.
Anthropogenic Noise from Offshore Wind Farm Construction Background A key element of the UK plan for the delivery of renewable energy.
Ian Couper Chief Executive,NSIG. ….to the PRESENT and FUTURE Renewable Energy Centre of Scotland, the UK, and Europe.
BWEA OFFSHORE MARCH th 2003 COWRIE UPDATE Dr. Carolyn Heeps Environmental Policy Manager Marine Estates.
A Circulation Model to Investigate the Movement of Wastes from an Open Ocean Aquaculture Site David W. Fredriksson U. S. Naval Academy NOAA Research -
Office of Renewable Energy Programs NAC-CESU Annual Meeting June 12, 2013 Mary C. Boatman, Ph.D. Environmental Studies Chief.
© 2010 San Diego Gas & Electric Company. All copyright and trademark rights reserved Options for Ocean-Based Energy 2 nd Maritime Business & Technology.
Solar Power Wind Power Wave Power Hydro-electric Power By Megan Ford.
Georgia’s Off-shore Wind Opportunities Presented by Bill Bulpitt and Rita Kilpatrick for Tybee Island City Council March 27, 2008.
THE OFFSHORE SITUATION IN GREECE Municipality of Corfu.
PERSPECTIVES OF OFFSHORE WIND ENERGY DEVELOPMENT IN MARINE AREAS OF LITHUANIA, POLAND AND RUSSIA, , PALANGA PERSPECTIVES OF OFFSHORE WIND ENERGY.
Brokerage session BG : Delivering the sub-sea technologies for new services at sea Cliff Funnell Maritime Transport and Innovation Brokerage Event.
PERSPECTIVES OF OFFSHORE WIND ENERGY DEVELOPMENT IN MARINE AREAS OF LITHUANIA, POLAND AND RUSSIA, , PALANGA PERSPECTIVES OF OFFSHORE WIND ENERGY.
Accounting for tree growth in resource assessment: A case study using the VENTOS code on Kyle wind farm Presenter: Oisin BRADY (VENTEC) Contributors: Anabel.
Geological Considerations for Offshore Windfarm Development A.Wheeler 1, M. McGrath 1, M. Coughlan 1,3, B. Dorschel 1,2 1 ERI & School of Biological Earth.
Offshore wind farms and marine environment Ideas from UNIFOB.
Lead isotopes in South Atlantic seawater from the UK GEOTRACES transect along 40°S Maxence Paul Mark Rehkämper, Tina van de Flierdt, Dominik Weiss.
Marine Renewables Marine Renewables and integrated planning Mike Neilson Director, Marine Scotland Scottish Government.
T i d a l E n e r g y S a b r i n a S a n t a - C o l o m a & K e l l y O s t r u s z k a.
Decision making exercise
Marine Renewable Energy & Environmental Impacts California State Lands Commission September 20, 2013 Agenda Item #118 Photo Credits: Ocean Energy Limited.
Hydrographic Services Review Panel October 12, 2010.
Wind power is the fastest growing energy resource in the world. Good wind areas, found on 6% of the land in the.
Kyoko Abe 16 March Outlines Concept Technology Market Status Potentials Projection.
The marine foresight panel’s energies from the sea task force concluded that both wave and tidal stream have the potential to supply a major part of Britain's.
Ocean Acidification Programmatic and cross agency.
OMSAP Public Meeting September 1999 Nearfield Hard-bottom Benthic Communities Barbara Hecker Hecker Environmental September 23, 1999.
Brandi M. Carrier Archaeologist Office of Renewable Energy Programs Port Modifications and their Consequences “In an industry where.
North Coast Wind Farm Tolano Environmental Consulting.
1 Energy Policy Act of 2005 Amended Section 8 of OCSLA Amended Section 8 of OCSLA Gave MMS authority over offshore renewable energy leasing Gave MMS authority.
How Much Power Does A Wind Turbine Produce. How Much Energy Will Wind Turbines Produce?
Baseline Ecological Study of Wind Turbines at Block Island Wind Farm
TURNKEY IST, Lisbon March 2015
COSA Committee Meeting
Statistical Methods for Model Evaluation – Moving Beyond the Comparison of Matched Observations and Output for Model Grid Cells Kristen M. Foley1, Jenise.
Daniel Johnston1, Robert W
Oceans (Water) Vocabulary Nov 8, 2010
Experiences with Wind Plants and Stability Studies in Isolated Systems
Draft National Marine Plan
COSA Committee Meeting
DG MARE Study to support Impact Assessment on the Marine Knowledge 2020 Interim report Michael Munk Sørensen 11 december 2012 COWI POWERPOINT PRESENTATION.
Hypotheses (motivate these in your introduction, discuss them in your discussion in the context of the results) There are patterns of association between.
Renewable and Non-renewable
OPERATIONAL OCEANOGRAPHY
Hypotheses (motivate these in your introduction, discuss them in your discussion in the context of the results) There are patterns of association between.
Evolution and Impact of an Upwind Coastal Jet
Renewable Energy & the Atlantic OCS: State Leadership
by Hannah C. Barkley, Anne L. Cohen, Yimnang Golbuu, Victoria R
Examining the Effects that Institutional Quality has on Economic Recovery After a Natural Disaster (2005 and 2008) Brendan Mooney, Peter T. Paul School.
Presentation transcript:

Comparing manual and computer assisted benthic cover estimations from underwater imagery for offshore wind-farms assessment Aleksej Šaškov 1 *, Thomas Dahlgren 2, Marie-Lise Schläppy 2, 3, Yuri Rzhanov 4 1 Coastal Research and Planning Institute, Klaipėda University; Lithuania; 2 UNI Research, Norway; 3 Environmental Research Institute, University of Highlands and Islands, Thurso, Scotland, UK, 4 Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire, USA Studying the impacts of offshore wind farms requires the ability to monitor benthic cover in order to assess potential changes. Study location: Havsul near Ålesund, Norway In this study, we analysed percentage benthic cover manually from benthic videos collected by ROV and by constructing mosaics of the video transects. The results were compared. 200 m video transects on a depth contour 200 m video transects on a depth contour 1

From the mosaics we extracted: Data analysis The video transects were analysed manually using a point- based method to estimate benthic cover. Comparing manual and computer assisted benthic cover estimations from underwater imagery for offshore wind-farms assessment Additionally, the videos were divided into 30 seconds segments, from which video mosaics were created. Video mosaic Using a g set of colours palettes with non- overlapping colours (a) red algae (b) crustose coralline algae (c) sand 2

Results and conclusions Comparing manual and computer assisted benthic cover estimations from underwater imagery for offshore wind-farms assessment However, the manual data was much more variable than the computer- assisted data. There was no significant difference between the manual and computerized estimates of benthic cover. manual semi-automated (a) red algae (b) crustose coralline algae (c) sand Conclusions Computer-assisted estimates of benthic cover take some time to set up, but large volumes of videos can be analysed in a short time. It yields less variable, more reproducible data. No need for a specialised person to do the analysis. It is a cost effective method for assessment of changes at offshore wind farms and other renewable energy sites. 3